There’s a whole API that the browser provides to prompt users to install:

https://developer.mozilla.org/en-US/docs/Web/API/Window/befo...

Have you ever tried communicating this to consumers of a web app? Our android customers get a nice little install popup or a push of a button.. it's pretty seamless. With TWA it's also trivial to put it on the play store.

How is "share" intuitive here?

I want to pin the app, not share.

That seems purposefully misplaced. As usual with malicious compliance.

In Android: Menu > Install and create shortcut. Much cleaner, intentional, and visible with a single click for me.